That's what they get though
You have to admit though that you can't expect any different when you develop something that is essentially a stop gap solution for missing core phone functionality. Apple were pretty much always going to get around to implementing MMS in some form, so the developers of these MMS replacement apps must have expected that it would happen at some point. They've released their stop gap applications, and made a bit of money no doubt, until Apple have put native support in to the phone.
So in summary, you develop stop gap solutions, make make a bit of money in the shot term, then the gap gets closed. This isn't just an Apple problem, it happens everywhere.
Must admit though I am getting completely fed up with El-Reg's attitudes towards all things Apple. It seems that they never actually let anyone with any enthusiasm review anything Apple related, and they always focus on the negative points far more heavily that the positive.
I'm an iPhone owner. I've also owned Windows Mobile Phones, Symbian UIQ phones, and god knows what else, and my iPhone, despite being lacking a few features, still kicks all of their asses. And you know why? Because I don't hate it. It doesn't get in my way. That's it.